"DJ" djovida, KJ6DJ
Fast Light Digital modem application (FLDigi) is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem. If you would like to try FLDigi, you can download and install the programs from https://sourceforge.net/projects/fldigi/. You should also load FLMsg.exe and Flamp.exe. Introduction-to-NBEMS-ARRL
Rich Harrington, KN6FW
Radio Direction Finding or T-Humting
T-Hunting aka Fox Hunting has a long amateur radio history. Hunt participants use radio direction finding techniques to locate one or more radio transmitters hidden in a designated search area. Rich Harrington, KN6FW will be presenting some of the systems and techniques used in T-Hunting. There is an active local ham community that participates in T-Hunting. There will be a hunt the following day in Fremont sponsored rdf-sf (https://qsl.net/sfthunt/rdf-sf/) and we're invited to participate with our new learned techniques. About Rich Harrington: First ham license WA6GJF about 1960. First class radio telephone license 1960. First transmitter hunt about 1962. US Navy 1966-1972 ECM operator (Transmitter hunting). Retired Pacific Bell communication engineer. Registered Professional Engineer with the state of California. Amateur radio operator KN6FW. Upgraded to extra when the code requirement went to 5 wpm. Hobby: Designing and using radio direction finding equipment
Computer Security in the Shack
Do you have a computer in your shack storing your valuable logs and carefully configured software? The internet can be a dangerous place. Computer security is the protection of computer systems and the data stored on them. This presentation will introduce good computer security practices and how to incorporate them into your everyday routine. Computer Security in the Shack
What's a RTL-SDR and why you need one
RTL-SDRs are ultra cheap software defined radios that runs on most platforms with a wealth of free software. If you have one bring it in with a laptop to try some software. An introduction to RTL-SDR
Jack has been operating mobile a lot and has put together a minimal FT-8 rig in a backpack.
Open Mic Night - EBARC Lightning talks
Members turn to speak on various topic of interest
Sharon Primbsch, AA6XZ
Organizing a Mega VE Session
Recently, lots of Bay Area Volunteer Examiners have come together several times to help the UC Berkeley Electrical Engineering and Computer Science (EECS) department. The instructors are encouraging their students to (optionally) become licensed hams, so they can test what they build in class. She'll describe what it took to get (and keep) these "Mega-Sessions" going. All the participants are delighted to be helping in (Science, Technology, Engineering, and Math) STEM education, in addition to furthering the amateur radio hobby. Organizining a Mega VE Session
Dr. L. Paul Verhage
High Altitude Balloon Flight
We flew another HAB - Photos
Peter Hoffman, W6DEI
The Moxon Antenna
We will have a presentation on the Moxon Rectangle antenna. Invented by Les Moxon, G6XN, The Moxon is a stealthy gain antenna that's inexpensive and fun to build. It's a great Saturday antenna project, especially for new hams seeking their first gain antenna. The Moxon is especially attractive to hams who want to avoid purchasing more expensive towers and rotators and who desire a directional antenna. For their size, Moxons are high performance antennas that lend themselves well to the spirit of experimentation and easily be scaled for any band, HF to UHF.
Ken Fowler, KO6NO
Field Day 2018
We had a great Field Day - come join us next year!
Speaker: Gary Lauterbach, AD6FP
DXers thrill at a contact with an exotic and distant location like Heard Island or Turkmenistan, but you can hardly get more distant and exotic than the moon. Hams have been making contacts with other Earth-based stations by bouncing radio signals off the moon (EME) for many years. But with the advent of weak-signal digital modes like JT65 it no longer takes expensive equipment, gigantic antennas and powerful amplifiers to be successful. Gary Lauterbach, AD6FP, of the Stanford Amateur Radio Club has been doing EME for nearly 20 years. His presentation will include some history of EME as well as current activities; what bands, modes, and antennas are commonly used; and how to deal with tracking, frequency stability, doppler shift, and path losses. I'm expecting this will inspire some (or many) of us to try our hand at this exotic niche of ham radio. EME Presentation
Speaker: Alan Biocca, W6AKB
At our April meeting, Alan will explore the world of 3D printing. While not specific to ham radio, 3D printing certainly has a place in building components of a ham station. And since prices for 3D printers continue to come down rapidly, it's no longer only reserved for well-funded academic laboratories and big corporations. Come learn what can be done with 3D printers, not just in the realm of science fiction any longer.
Digital Modes Workshop 1: FT8 Weak-Signal Mode
We'll explore digital modes with a high-level introduction to how digital modes work and what equipment one needs to run digital modes. Then we'll focus more specifically on the latest weak signal mode, FT8. When we're at the low ebb of a solar cycle or if you have very limited options for antennas then the weak signal modes may be just the thing for you. FT8 is amazing in its ability to complete a contact under the absolute worst propagation conditions, using low-gain antennas, and running just a few watts of power. It's no wonder the popularity of FT8 has soared in the few months it's been available. Future Digital Mode Workshops may explore some of the more established digital modes like PSK and RTTY and less frequently used modes like MFSK, Olivia, Domino, Contestia, etc.
Peter Hoffman W6DEI
Antenna Modeling Workshop, Part 2
This will be a continuation of the October workshop on antenna modeling with 4nec2. Bring your laptops with the software installed. We'll pick up where we left off, covering topics like using variables (symbols) to enable the powerful 4nec2 Optimizer. More than just modeling an antenna, the Optimizer can actually help you design an antenna. What's the optimal spacing of elements in your yagi to achieve the best F/B ratio, gain, closest match to 50 ohms? These are some of the things the 4nec2 Optimizer can help you determine. Time permitting we'll also cover how 4nec2 can help you design a matching network to achieve low SWR. We'll use an example antenna to illustrate the aforementioned topics, but feel free to bring your own antenna models - we can help you work on those as well.
Dan Werthimer, Chief Scientist at SETI presented about the Breakthrough Listen Initiative.
Search for Extraterrestrial Intelligence
The Breakthrough Listen Initiative, funded by the Breakthrough Prize Foundation, is the most powerful, comprehensive and intensive scientific search ever undertaken for signs of intelligent life beyond Earth. The project is using the Green Bank radio telescope in West Virginia and the Parkes Telescope in Australia to search for radio transmissions from advanced civilizations. In addition, the Automated Planet Finder at Lick Observatory is being used to search for optical laser transmissions from other technological civilizations. SETI Be sure to download the SETI screensaver amd join the largest supercomputer in the world: setiathome
VE License Test Session
East Bay Amateur Radio Club @ East Bay MiniMaker Faire
Have you ever wanted to use, understand, build, optimize, model, or test an antenna but were afraid to ask? If so than the EBARC Antenna Workshop/Hackathon is for you. A lot of this stuff may appear hard but there is free software that makes it fun and easy. We will have a demonstration of some popular antennas scaled to 900 MHz that we developed for the Maker Faire. You will be introduced to antenna basics, designing and modeling/optimizing with 4NEC2 software. To get the most out of the event please bring a laptop with 4NEC2 installed. Download 4NEC2 (http://www.qsl.net/4nec2/)
Enjoy and Analyze the "Great American Solar Eclipse"
Ken Fowler KO6NO
FCC General Class License Class Begins
u.RAT - the Universal Remote Antenna Tuner
Field Day Follow Up
VE Test Session
Prepare for the "Great American Solar Eclipse"
Jim Latham AF6AQ
High Altitude Balloon Launch: HENRY-1